Bolting-up device



W. ERICKSON.

BOLTING-UPKDEVICE. APPLlcATloN msu res. 14. 1921.'

Patented Apr. 18, 1922.

2 SHLETS-SHEET l.

INVENTOR.

W; EREKS N BY/I( A TTORNEYS.

W.ERICKSON.

BoLTlNG-UP' D'EvlcE.

APPLICATION FILED FEB. I4, |921.

1,413,015. Patnted Apr. 18, 1922.l

2 SHLETS-SHEET 2.

INVENToR.

'Y of use in pulling bolts and the like from til SriFFlS easiernomine-nr nier/rior..

Application filed February l Be it known that "i, WILLIAM ERICKSON, acitizen of the United States, residing at San Francisco, in the countyof San Francisco and State of California, have invented new and usefulimprovements in Bolting- Up Devices, of which the following is aspecification.

rlhis invention relates to a device for bolting up boiler plates, shipplates and the like7 preliminary to riveting such plates.

In the art, at present, a great deal of time and labor are required tobolt up the plates of a ship, boiler or tank so as to hold the plates inposition for riveting.

It is the primary object of this invention to provide a relativelysimple and inexpensive device by means of which the bolting up operationmay be carried out eiiioaciously and reliably and with a minimumexpenditure of labor, the operation of securing the plates togethertaking up less time and labor than is the case in following out thepresent practice.

An object of the invention is to provide a device of the characterdescribed, which in the operation thereof to bring the plates together,sufficient leverage may be easily obtained to quickly draw the platestogether; the device operating immediately upon the drawing of theplates together to move a wedging member, corresponding in purpose tothe nut such as now used, into position to hold the bolt in place andthe plates tightly together, this operation being carried out with asingle movement ofv the device. I

Another object of the invention is to provide a bolting up device of thecharacter described which will also be of use in pulling together platesor members which are to be bolted permanently and which also will bewooden members.

The invention possesses other advantages and features some of which,with the foregoing will be set forth at length in the followingdescription where l shall outline in full that form of the inventionwhich l have selected for illustrationin the drawings accompanying andforming a part of the present specification. In said drawings l haveshown one form of the construction of my( invention, but it is to beunderstood that l do not limit myself to such form since theSpecification of Letters Patent. Patented Ap?. i8, 1922 e, i921. sei-iaiNo. 444,654.

invention as expressed in the claims may be embodied in a plurality offorms.

Figure l represents a side elevation and partly broken away of thedevice of this invention7 showing it as it would appear when in userinpulling plates together preliminary to bolting or riveting thereof.

Figure 2 is a front elevation of the de 'ice broken away and shown inpart in vertical section.

lFigure 3 is a vertical sectional view of the bolt clamping vise. l

Figure 4 is a. top plan view partly broken away of said clamping device.

Figure 5 is a sectional view taken on line 5-5 of Figure 3.

Figure 6 is a perspective view of one Vof the jaws of the device.

Figure 7 is a vertical sectional view of the jaw casing or housing.

Figure 8 is a sectional view taken on line 8-8 of Figure 7.

Figure 9 is an end elevation of the housing for 4the jaws.

Figure l() is a longitudinal sectional view of one of the locking aws.

Figure 1l is a top plan view of said locking wedge.

Figure l2 is a prespective view of the device of the inventionassembled.

Figure 13 is 'a fragmentary vertical sectional view taken through thecenter of the device depicting one of the fulorum rollers in sideelevation.

Figure 14 is a top plan view of the antifriction bearing device.

Figure 15 is a side elevation of one of the fulcrum rollersshowing thespring means for turning the rollers and bearing device to normalposition associated therewith.v

Figure 16 is an 'enlarged side elevation of one half of the deviceshowing the same as it would appear after the bolting up action hastaken place.v Y

in carrying out the invention there is provided an elongated bodyportion having at its lower end fulcrum rollers which are adapted tobear against the work. Carried by the body adjacent its lower end is aclamping Adevice adapted to engage and clamp the bolt brought to bearupon one of the plates, upon the movement of the body in a givendirectio-n said clamping device will pull outwardly on the bolt and theroller will press inwardly upon the plate whereby the bolt is broughthome and the plates are pulled together. Mounted upon thebody is meansfor moving a locking wedge member into such relation to the outer plateand bolt as to hold the bolt in position securing the plates together.rlhis means is arranged so that when the wedge member is mounted uponthe bolt at the beginning of the bolting up operation, at thecompleti'oi'i of said opf eration the wedge is moved into position tohold the bolt in place.

Referring specifically to the form of the invention illustrated in theaccompanying drawing there is provided an elongated body member 1 whichserves as a lever and is preferably formed of two similar halves 2bolted together as at 8. A handle 4 is preferably mounted in a socket 5therefor pro- Y vided. between the halves of said body at one endthereof. Atthe other end of the body there are provided roller receivingrecesses G in which fulcrum rollers are journalled in the opposite wallsof the recesses 6 in any suitable manner but so as to dispose the loweredges of the rollers below the lower edges of the body, whereby saidrollers may be made to engage the work in advance of said body.

Mounted in a central, end-opening recess 9 in said body between therollers 7 is a bolt clamping device generally designated 10.l The device10 comprises a housing 11 having trunnions 12 eXtendingfrom oppositesides thereof and pivoted in the opposed walls of the said recess 9 atpoints to one side of the trunnions 8, whereby said bolt clampingdevicev is eccentrically vmount-ed.V

Mounted within the housing 11 are opposed wedge-like jaws 13 preferablyarranged for vertical adjustment within said housing'. Each jaw isinclined inwardly and downwardly on its outer-face and opposite saidinclined face is provided with a semi-circular gripping face 14 whichis` formed with screw threads or Serrat-ions 15. opposed faces of thejaw are parallel and extend perpendicular. The housing 11 is rectilinearin outline and has certain opposed walls 1-6 formed with inclinedinterior faces. 17 corresponding to the inclined faces of the jaws andcontacting therewith. By this arrangement a Vwedging action is providedupon relative movement of the jaws and housing. In the parallel faces ofthe jaws there are provided inclined grooves 18 in which protuberances19 carried ony said opposed walls of the housing, slidably engage so asto insure the movement of said jaws towards and away from one anotherThe other Y vent relative movement of the jaws there are providedgrooves 20 which intersect the grooves 18 and extend at right anglesthereto. The grooves 20 of one jaw aline with the grooves 20 of theother jaw and a key strip 21 is fitted in said aligned grooves 20 andengage snugly therein but not so as to prevent relative lateral movementof the jaws. The upper side of the housing is closed by a plate 22secured in place by screws 23. The lower ends of the jaws are adapted toproject below the lower side of the housing and to insure thepresentation of the ljaws in proper position to effect the clamping therof at all times, small expansive springs 24 are interposed between andengage the upper faces ofthe jaws and under side of said plate 21. Anopening 25 is provided in the plate 22 so as to permit the bolt to passfreely therethrough. The spaces provided by and between semicirculargripping-faces 15 is in registration with said openingf25.

Als a nieans'for locking the bolt in place after it has been pulled intoposition and the plates have been forced together there isy provided awedge member 26, of substantially rectilinear outline having a keyholeslot 27 extending longitudinally therein. In

the rear face of this wedge member there isV provided a transversegroove 28' for the purpose which will be later described.

A bolt such as will be used in connection with the device of thisinvention o-ne of' As a means for moving the wedge mein-V bers intoposition, iexible elements 31 are secured at certain ends as at 32 tothe opposite walls of the recess 9 of the body and at their other endsare connected with a transverse bar or rod 33. adapted to engage in thegroove 28 as shown in Figure 16 so as to cause to move 'the wedge intoposition at the same time that the bolt is'pulledV through the arepulled together.

As a means for preventing excessive strains and stresses from beingtransmitted to and taken up at theitrunnions 8 for Vthe roller 7 thereis provided an anti-friction device 34?: which is mounted between-Vanarcuate bearing surface' opposite each roller 7 in the body, and each ofsaid rollers. This device comprises an arcuate frame 36 carrying aplurality of preferably cylindrical roller bearings 37. The pressureexerted inthe leverage action on kmovement of the body portion 2 istaken up'largely bythe bearings 37 and in this waythe strain is*relieved'from the trunnions 8.V To return the bearing deviceY 37 tostarting` positionas This rod is f plates and the plates during theoperation of tlie'device. To preshown in i Figure 13, a vrectilinearcoiledlBO spring 38 is mounted around a boss 39 on each roller 7. Oneend of this springv is fastened to the roller as at 40 and the other endis secured as at 41 (Figure 2) to the body 1. At the completion of theleverage stroke the rollers turn by action ofthe springs and theanti-friction devices will move into normal or starting position toagain intercept the strains on. the next leveragev stroke.

- As a means forinsuring proper release of the jaws of the bolt, whenthe body is moved for effecting this action, there are pro-vided angulardetent members 42 each of which is pivoted intermedia-teef its ends asat 43 on one side of the housing 11. The lower eX- tremities of thesemembers extend beneath the housing and the other extremities are bent'to provide handle portions 44 disposed above the housing to one sidethereof. A spring 45 is connected at its ends with said member 42 andexerts a tendency which normally holds said members in position toprevent theV dropping of the jaws below the lower side of the casing 11as shown in Figures 7 and 9, said lower ends of the detent members beingdisposed in the path of the jaws. In effecting release of the jaws, thedevice is operated, so that the jaws are moved upwardly into the housingand said jaws will lie substantially flush at the lower ends with thelower side of the housing. Vhen the jaws assumel this position thedetent `members 42 move into the position shown in Figure 7, inthe pathof oneofthe jaws, and serve tok prevent said jaws from 'droppingdownwardly on to the bolt and again clamping the same.

Operation.

Assuming that it is desired to bolt up plat-.es preliminary to riveting,the plates A and B as shown in Figure 1 are brought into position sothat the rivet holes aline and the bolt 29 isthen inserted through theholes. The wedge member 26 is then mounted upon the bolt and arranged tolie upon the outer plate A in the position shown in Figure 1..

'Ihe device of my .invention is then moved towards the bolt so that thelatter will be rod 33 andiiexible element 31 are arranged as shown inFigure 1 relative to the grooved end of the wedge. The device is nowready for the taking up or bolting up loperation and by grasping thehandle 4 and moving the body from right to left, with the rollers 7bearing upon the plate A a leverage will be effected which will, owingto the eccentric mounting of the clamping device 10, move the casing 11of said device outwardly and away from the plates. This action will,owing to the wedge shape of the jaws and the wedge shape walls of thehousing for the reception of the jaws cause the jaws to be moved towardsone another so as to effect a clamping of the bolt, with the result thatthe bolt will be pulled outwardly and the plates A and Bf will be movedtogether and into the position shown in Figure 16. Dur ing this movementof the body the bar 33 will engage in the groove 28 in the wedge andmove the wedge so that the reduced portionof the bolt engages in theshank of the key hole opening in the wedge and the upper and lower facesof the wedge engage with the shoulder provided by reducing the bolt atthe point 30. Further inward movement of the wedge causes a tightwedging between the shoulder of the bolt and the outer faces of theplate A with the result that the bolt is securely and iirmly held inplace with the plates close together as shown in Figure 16.

To releasethe clamping device the handle 4 is moved from left to rightback into approXimately the position shown in Figure 1 and this movesthe casing 11 downwardly and causes the jaws 13 l.to be moved upwardly.Upward movement of the jaws owing to the wedge arrangement thereof withthe housing causes a lateral and spreading apart movement of the jawswith the result that they release-the bolt. At this time the detentmembers 42 spring into yplace so as to hold thejaws against beingprojected downwardly by the springs 24. After this reverse movement ofthe handle the device may then be lifted clear of the bolt and wedge andthe operation may be repeated for bolting up another part of the plates.

Thus, it will be seen that with the device of my invention it will bepossible toAv very quickly and easily bolt up plates and the likepreliminary to riveting, the time consumed and troublesome operation ofturning nuts on the bolt being eliminated. The complete bolting upaction may be accomplished in a very short time since the pulling of thebolt in place and the Vsecuring of the bolt in such position areaccomplished simultaneously. When it is desired to remove the bolts thewedge is knocked out of place and the bolts will readily drop and may beforced out of the rivet openings.

1. A bolting up device embodying in its construction, a body memberadapted to bear at one end against the work, a bolt clamping devicemounted upon said member to one side of a point thereof which engageswith the work, a bolt locking member, said body and having wedgereceiving portions, of a wedge member associated with said bolt, a bodymember having one end adapted for engagement with one of the plates, aybolt clamping device carried by the body member lin such positionthereon that when the body member is rocked with said end fulcruming onsaid plate, the bolt will be pulled into `position and the plates movedtogether,

and means operating to xmove said wedge int-o position to hold the -boltin place, during the rocking of said body member y 3. In a bolting -updevice comprising' a lever-'like lbody adapted to fulcrum vat one endupon the 4work and a bolt-clamping device carried by said body adjacentbut to one side of the Vfulcrum point thereof, a bolt locking member andmeans for moving said locking lmember into locking position upon a leveraction of said body.

4. In combi-nation with plates to be bolted together and a boltextending th-rough said plates and having wedge engaging -shoulders, ofa wedge mounted upon -said plate and adapted to be moved into engagementwith said shoulders, a membe-rl arranged lto be fulcrumed at one endthereof upon one of said plates, a bolt clampingfdevice carriedV by saidbodyv adjacent but to one side of the fulcrum point thereof and meansupon the body for moving said 'wedge into position upon'movement 'ofsaid member.

5. A "bolting up ldevice comprising a body having fulcrum rollers `atone end thereof which rollers are adapted to engage the work, aboltclamping device carriedrby the body at a point adjacent but to one sideof the axis of said rollers, said device comraieyoli prising a housingopen on the side thereofy abutting inclined faces arranged to cause.movement of the jaws toward one anotherV when the housing is moved awayVfrom the work and movement of the jaws away from one another when ythevhousing is moved toward the work.

6. A bolting up device comprising a body having fulcrum rollers at oneend thereof which rollers are adapted to engage the work, a boltclamping device carried by the bod-y at a point adjacent but to onesideof the axis of said rollers, said `jaws having aligning `groovestherein and key members mounted `in said grooves -to lhold the jaws inthe same lplane and permit lateral movement of the jaws relative to oneanother.

7. In a bolting up device vin combination with a bolt having a reducedportion intermediate -of its ends of a 4wedge member having a' key holeopening mounted Vupon sa-id bolt and movable at right angles thereto soas to wedge with relation to thereduced portion land a member' adaptedto engage said bolt and said AWedge member to simultaneously move the`bolt longitudinally of its axis andthe 4wedge member transversely ofthe bolt. v

8. In a bolting up device a' body portion, a fulcrum roller on'the bodyadapted to bear upon the work, abolt clamping device carried by the bodyadjacent butto one side of the center ofthe roller, anti-frictionbearings linterposed between the periphery of the f roller and Va vpart-of the body, ,a frame for supporting said anti-friction bearings andspring means associated vwith the roller and body so as to return saidframe and bearings to normal position after'a predetermined movement ofthe body during'the operation of the device.

'WiLLmM Enrcison.

